Hoshizaki F-300BAF Manual de usuario

Hoshizaki“A Superior Degreeof Reliability”www.hoshizaki.comModelF-300BAFSelf-Contained FlakerHoshizaki America, Inc.Number: 73072Issued: 3-2-1999Revis

10D. Timer Board1. Solid-State Timer Board Control• A HOSHIZAKI exclusive solid-state sequence timer board is employed in Hoshizaki self-contained flak

11E. Sequence of OperationHoshizaki utilizes a solid state timer board to switch the components on and off as needed. The sequence is as follows: 1. S

12Legend:BC - bin controlComp - compressorFMS - self-contained fan motorFR - flush relayFWV - flush water valveGM - gear motorGMPR - gear motor protect

13III. Technical InformationA. Water Circuit and Refrigeration CircuitF-300BAF

14B. Wiring Diagram1. Auxiliary Code K-1 and EarlierF-300BAF

152. Auxiliary Code K-2 and L-0F-300BAF

163. Auxiliary Code L-1 and M-0F-300BAF

174. Auxiliary Code M-1 and LaterF-300BAF

18C. Sequence of Electrical Circuit1. Fill Cycle When power switch is moved to "ON" position, water is supplied to reservoir.F-300BAF

192. Ice Purge Cycle When reservoir has filled, gear motor starts.F-300BAF

2IMPORTANTOnly qualified service technicians should attempt to service or maintain this unit. No such service or maintenance should be undertaken until

203. Freeze Cycle Compressor and condenser fan motor start about 60 sec. after gear motor starts.F-300BAF

214. Shutdown Compressor and condenser fan motor stop about 90 sec. after bin control operates, gear motor stops about 60 sec. later. Flush water valv

225. Cleaning - Flush Switch Compressor and condenser fan motor stop about 90 sec. after manually moving flush switch to FLUSH position. Gear motor sto

236. Low Water SafetyIf upper float switch fails to close, water valve remains open until upper float switch closes and water control relay energizes.F-

247. Spout Safety SwitchWhen saftey switch is activated, the safety switch relay operates, and the icemaker does not run.F-300BAF

258. High Pressure SwitchIn case of high pressure, pressure switch shuts down unit.F-300BAF

26D. Performance Data1. F-300BAFAPPROXIMATE Ambient Water Temp. (°F)ICE PRODUCTION Temp. (°F)PER 24 HR. 70 *303 *(137) 290 (131) 278 (126)80 267 (12

27IV. Service DiagnosisA. Diagnostic ProcedureThis diagnostic procedure is a sequence check that allows you to diagnose the electrical system and comp

285) Refill/Low Water Safety Cycle – As ice is produced, the water level in the reservoir drops. As it drops, the upper float switch and lower float swit

29B. Diagnostic Charts1. No Ice ProductionProblem Possible Cause Remedy[1] The icemaker will not start. (fill cycle, water valve)a) Power Supply 1. Off

3Please review this manual. It should be read carefully before the unit is serviced or maintenance operations are performed. Only qualified service tec

30Problem Possible Cause Remedyj) Water Control Relay 1. Bad contacts. 1. Replace.2.Open coil. 2. Replace.k) Water Valve 1. Coil winding opened. 1. R

31Problem Possible Cause Remedye) Compressor 1. Loose connections. 1. Tighten.2.Motor winding opened or grounded.2. Replace.3. Compressor locked and m

323. OtherProblem Possible Cause Remedy[1] Abnormal noise a)Fan Motor 1. Bearing worn out. 1. Replace.2.Fan blade deformed. 2. Replace fan blade.3. Fa

33V. Removal and Replacement of ComponentsIMPORTANTEnsure all components, fasteners and thumbscrews are securely in place after the equipment is servi

348) If necessary, add any remaining charge to the system through the low-side. Use a throttling valve or liquid dispensing device to add the remaini

35C. Removal and Replacement of CompressorIMPORTANTAlways install a new drier every time the sealed refrigeration system is opened. Do not replace th

36D. Removal and Replacement of DrierIMPORTANTAlways install a new drier every time the sealed refrigeration system is opened. Do not replace the dri

378) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.9) Evacuate the system, and charge it with refrigerant. See the nameplate for the

38F. Removal and Replacement of Evaporator Assembly ComponentsCAUTIONMake sure that the saftey switch and spout are properly installed after making re

391. Upper Bearing Wear Check To ensure that the bearing inside the extruding head does not exceed the wear tolerance of .02", follow the instruc

4V. Removal and Replacement of Components ... 33A. Service for Refrigerant Lines ...

403. Removal and Replacement of Extruding Head1) Unplug the unit from the electrical outlet.2) Remove the panels.3) Remove the thumbscrews and take of

414) Recover the refrigerant and store it in an approved container.5) Remove the thumbscrews and take off the spout from the evaporator.6) Disconnect

427) Remove the allen head cap screws securing the evaporator to the lower bearing housing.8) Raise the evaporator up to access the lower housing.9) R

4310) Replace the panels in their correct positions.11) Plug the unit back in.G. Removal and Replacement of Fan Motor1) Unplug the unit from the elect

448) Connect the hose to the water valve and secure it with the clamp.9) Pour water into the reservoir, and check for water leaks.10) Open the water s

45VI. Cleaning and MaintenanceIMPORTANTEnsure all components, fasteners and thumbscrews are securely in place after any maintenance or cleaning is don

468) Remove the thumbscrews attaching spout (A) to the evaporator assembly and lift off spout (A) and spout packing (A). See Fig 4.9) Pour the cleanin

474. Sanitizing Procedure - Initial1) Close the water supply line shut-off valve.2) In the storage bin, remove the thumbscrews attaching spout (B), th

488) Using the thumbscrews, replace spouts (A) and (B) and spout packings (A) and (B) in their correct positions.9) Allow the icemaker to sit for abou

49B. MaintenanceIMPORTANT1. This icemaker must be maintained individually, referring to the instruction manual and labels provided with the icemak

5I. SpecificationsA. Icemaker1. F-300BAFNote: We reserve the right to make changes in specifications and design without prior notice.AC SUPPLY VOLTAGE 1

50C. Preparing the Icemaker for Long StorageWARNINGWhen shutting off the icemaker for an extended time, drain out all water from the water line and re

6II. General InformationA. Construction1. F-300BAF *The switch actuator is located in the ice storage bin.Ice Storage BinSliding DoorControl Water Val

7B. Ice Making Unit

8C. Control Box Layout1. F-300BAFa) Auxiliary Code K-1 and EarlierNote: The above component names are identical with the wiring label, but not with

9c) Auxiliary Code L-1 and M-0FLUSH SWITCHPOWER SWITCHCONTROL BOARD FUSE (1A)GEAR MOTOR FUSE (1.5A)TRANSFORMERCAPACITOR - GEAR MOTORSTART CAPACITORFLU